GridView Edit:on clicking edit a new page should be open where user can update data


Some time user need to update record when user click Edit Button in Grid a new page will be open for Edit.

On clicking edit in GridView a new page should be open where user can update data. In this article i am explaining how to update record using GridView.When User Click edit button in GridView new page will be open where user can update record.in second page i have just find the data not wrriten the code for update.
Here also i have written code for delete record in GridView and if GridView has no record show message no record found.


public void GridViewBind()
{
using (SqlConnection conn = new SqlConnection(conStr))
{
DataSet ds = SqlHelper.ExecuteDataset(conn, "LeaveMaster_Select");
GridView1.DataSource = ds.Tables[0];
GridView1.DataBind();
}
}
protected void ImgDelete_Click(object sender, ImageClickEventArgs e)
{
ImageButton img = (ImageButton)sender;
Label Leave = img.FindControl("Label1") as Label;
using (SqlConnection conn = new SqlConnection(conStr))
{
conn.Open();
using (SqlTransaction t = conn.BeginTransaction())
{
try
{
exceptionMessage.Text = SqlHelper.ExecuteScalar(t, "LeaveMaster_Delete", Leave.Text, "", 'D').ToString();
t.Commit();
GridViewBind();
}
catch
{
t.Rollback();
}
}
conn.Close();
}
}
protected void ImgbtnDetails_Click(object sender, ImageClickEventArgs e)
{
//Selecting a Record from Grid For Updation..
ImageButton aspSender = sender as ImageButton;
Label lblId = aspSender.FindControl("lblLeaveID") as Label;
Response.Redirect("~/LeaveDetails.aspx?Id=" + lblId.Text + "");
}

===========
2nd page

if (Request.QueryString["Id"] != null)
{

Id = Convert.ToInt32(Request.QueryString["Id"].ToString());
string str = "SELECT LeaveCode, LeaveDesc, LeaveId FROM LeaveMaster WHERE (LeaveId = "+Id+")";
DataTable dt1 = SqlHelper.ExecuteDataset(conStr, CommandType.Text, str).Tables[0];
txtCode.Text = dt1.Rows[0]["LeaveCode"].ToString();
txtCode.Enabled = false;
txtShortName.Text = dt1.Rows[0]["LeaveDesc"].ToString();
txtShortName.Enabled = false;
}

aspx Page

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="LeaveId"
OnSelectedIndexChanged="GridView1_SelectedIndexChanged" Width="700px" PageSize="10" AllowPaging="True"
OnPageIndexChanging="GridView1_PageIndexChanging" >
<Columns>
<asp:TemplateField HeaderText="LeaveId" InsertVisible="False" SortExpression="LeaveId"
Visible="False">
<EditItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("LeaveId") %>'></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("LeaveId") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="LeaveCode" HeaderText="Leave Code" SortExpression="LeaveCode" />
<asp:BoundField DataField="LeaveShortDesc" HeaderText="Short Desc" SortExpression="LeaveShortDesc" />
<asp:BoundField DataField="LeaveLongDesc" HeaderText="Long Desc" SortExpression="LeaveLongDesc" />
<asp:CommandField ButtonType="Image" HeaderText="Edit" SelectImageUrl="~/Image/img_edit.png"
ShowSelectButton="True">
<ItemStyle HorizontalAlign="Center" />
</asp:CommandField>
<asp:TemplateField HeaderText="Details">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</EditItemTemplate>
<ItemStyle HorizontalAlign="Center" Width="40px" />
<ItemTemplate>
<asp:ImageButton ID="ImgbtnDetails" runat="server"
OnClick="ImgbtnDetails_Click" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<ItemTemplate>
<asp:ImageButton ID="imgbtnDelete" runat="server"
OnClick="ImgDelete_Click" OnClientClick="return ConfirmDelete();" />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" Width="50px" />
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>No record found !</EmptyDataTemplate>
</asp:GridView>

Thanks & Regards
Santosh

Reference: http://aspdotnetcode.blogspot.com/2010/08/gridview-editon-clicking-edit-new-page.html


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